Well me I personally think the dmr needs to be nerfed.
Answer:
Yellow fever.
Explanation:
Yellow fever is caused by the virus belong to the Genus Flavi virus. This disease remain for short duration. The mosquito bite is responsible for the spreading of the disease.
The main symptom of this disease headache, muscle and fever. This diseases mainly shows the quarantine means the individual that arrive from other place gets infected with contagious disease. The symptoms of this individual is more or less related to the yellow fever.
Thus, the correct answer is yellow fever.
N2O5 is one of the binary nitrogen oxides.
Answer:
<em>398 deaths were caused by Alzheimer.</em>
Explanation:
Proportionate mortality rate (PMR) gives the proportion of deaths in a given population over a period of time, this can be linked to various causes.
Mathematically PMR is reoresented below;
PMR =
X 100
where
= No. of death from a specific cause (In our case Alzheimier )
= Total No. of death at a given period
from the question the parameters were given except the number of death from Alzheimier
1.87 =
multiply both side by 21,270 to isolate 
= 1.87 x 21,270
Divide both side by 100 to obtain 
= 
= 397.749
since dead people can not be divided
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